**Weegy:** x? - 2x = 4
x? - 2x - 4 = 0
Quadratic Formula:
x = [-b ? (b? - 4ac)] / 2a
x = [2 ? (4 + 16)] / 2
x = (2 ? 20) / 2
x = 1 ? 5
or
x = 3.24 or -1.24

**User:** Write 5,000,039 in scientific notation.
0.5000039 x 10-7
5.000039 x 10-6
5.000039 x 106
0.5000039 x 107

**User:** Simplify (x4y)3.
x4y3
x7y3
x12y3

**Weegy:** (x4y)3 = x^12 y^3. Source: [ ]

**User:** Evaluate f-2g for f = 3 and g = 27.
3
9

**User:** What is the common ratio of the following sequence?
80, 20, 5, ...
-4
4

**User:** Evaluate x0 + y0 for x = 3 and y = 2.
0
1
2
5

**Weegy:** If this is x^0+ y^0 then the answer is 2 because anything raised to ^0 is 1. However if 0 is the multiplier of both x and y then the answer is 0.

**User:** Simplify (6ab3c)(-abc2).
-6a2b4c3
-6ab3c2
6b2c

**User:** Find the seventh term of the following sequence?
1.5, 3, 6, ...
96
28
18

**User:** When the following quadratic equation is written in general form, what is the value of "c"?
-8
-6
-2

**Weegy:** hen the following quadratic equation is written in general form, what is the value of "c"?
The formula of quadratic equation is
ax^2+bx+c=0
Answer: -2

**User:** Which of the following equations is quadratic?
x(x2 + 1) = 0
5(4x + 2) = 3
(x + 3)(x + 4) = 5

**Weegy:** x2- 1 = 0

**User:** Which of the following points lies on the graph of y = x2 - 2x + 6?
(-3, 21)
(-2, 0)
(-1, 10)

**Weegy:** B.(-2,0)

**User:** What is the line of symmetry for the graph of y = -3x2 + 12x - 11?
x = -4
x = -2
x = 2

**Weegy:** The graph of x^2 - 12y = 12x - 12 is the graph of a quadratic.

**User:** Which of the following points is in the solution set of y > -x2 + 5?
(0, 5)
(1, 3)
(2, 4)

**Weegy:** (1, 3)

**User:** What is the vertex of the parabola whose equation is y = (x + 1)2 + 3?
(-1, -3)
(-1, 3)
(1, 3)

**Weegy:** (-1, 3)

**User:** Describe the translation of the graph of y = x2 that results in the graph of y = (x - 3)2.
left 3 units
right 3 units
down 3 units
up 3 units

**Weegy:** The translation of the ...

(More)The line of symmetry for the graph of y = -3x^2 + 12x - 11 is x = 2 .

symmetry = -12/2*(-3) = 2

Added 290 days ago|2/12/2015 11:45:18 PM

(2 , 4) is in the solution set of y > -x^2 + 5 .

when x = 2

-x^2 + 5

= -2^2 + 5

= -4 + 5

= 1

4 > 1

Added 290 days ago|2/12/2015 11:47:20 PM

The solution set of (x - 2)(x - 3) = 2 is { 1 , 4} .

(x - 2)(x - 3) = 2

x^2 - 2x - 3x + 6 - 2 = 0

x^2 - 5x + 4 = 0

(x - 1)(x - 4) = 0

x = 1 or x = 4

Added 290 days ago|2/12/2015 11:50:04 PM

This answer has been confirmed as correct, not copied, and helpful.

Confirmed by

sujaysen [2/13/2015 7:20:27 AM]

x - 3 = ± 5^1/2 follows from (x - 3)^2 = 5.

Added 290 days ago|2/12/2015 11:51:54 PM

The following point (-2 , -1) is in the solution set of y < x^2 - x - 6 .

when x = -2 ,

x^2 - x - 6

= (-2)^2 + 2 - 6

= 4 + 2 - 6

= 0

y = -1

-1 < 0

Added 290 days ago|2/12/2015 11:54:25 PM